Type-writing machine.



' No.890,120 PAT-EDITED JUNE 9, 1908.

(LIJLBOND. TYPE WRITING MACHINE;

APPLICATION FILED JULY 7, 1905.

WITNE 5E5= I lwvamua UNITED STATES PATENT OFFICE.

CHARLES J. BOND, O-F SYRACUSE, NEW YORK, ASSIGNOR TO THE MONARCH TYPEWRITE R COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE,

Specification of Letters Patent.

. "Patented June 9, 1908.

Application filed. July 7, 1905. Serial No. 268,671.

vention is to provide fractional line spacing devices which are simple in construction and efiicient in operation.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of arts and combinations of devices to be heremafter described and claimed.

In the accompanying drawings, Figure 1 is a detail central longitudinal sectional view taken through the platen and showing the features of my invention applied thereto. Fig. 2 is a like view of the same, the view heing'taken at right angles to that shown in Fig. 1. Fig. 3 is a detail perspective view of a portion of the device to be hereinafter more fully described, and Fig. 4 is a sectional view taken on a line -90 in Fig. 1 and looking in the direction of the arrow in said figure; the

view showing the line spacing'wheel and platen head in end elevation.

The platen comprises the usual external sheath 1 and internal wooden core 2; At one end of the platen is a platen head 3 which is secured to the platen by screws 4 that extend through holes in the platen head and take into'the core 2 of the platen. This platen head has a shoulder 3 seated within the core and an inwardly extending sleeve 5 that eonbears at one'end against'the shoulder on the sleeve and at the other end against the inner side of the platen frame. The sleeve 7 has a longitudinal slot 11' into which a pin .12 projects, the pin being carried by a spindle 13 received within the bore of the slee ve 7 and guided thereby in its'longitudinal movement. The outer end of the spindle 13 carries a finger wheel 14 secured thereto by a screw 14, whereas the inner end of said spindle bears against one end of the s indle 6, so as to move it longitudinally. T e opposite end of the platen carries a part which is shown in detail in Fig. 3. This piece is in a sense a platen head and comprises a disklike member 15 secured to a second disk-like member 16 by an intermediate cylindrical member '17", and an outwardly extending spindle or shaft-like member 18 projects from the disk-like member 16 and is seated in a bearing in the platen frame 8. A finger Wheel 19 is removabl'y secured by a screw 20 to thefree end of the member 18 where it projects beyond the platen frame. The

members 15, 16, 17 and 1.8 are preferably made in one piece and an end opening 2115 contained inthe disk-likemember 15 and the cylindrical member 17 for the reception of one end of the spindle 6. A set screw 22 is received in a threaded opening in the cylin dric al member 17' and the inner end of said v 80 screw is received in. a cut out portion 23 in the spindle 6, in order to limit the longitudinal movement of the spindle 6 and to prevent an accidental withdrawal of the spindle from its bearing 21. A coiled expansion spring 24 surroundsthe spindle 6 and bears at one end against the inner face of the member 15 and at its opposite end against a wedging or actuating device 25 hat is adjustably secured to the spindle by a set screw 26. This wedge-like device is in the nature of a sleeve that has a beveledwedging face 27 thereon.

The tension of the spring 24 is exerted to move the spindle 6 in the direction of the arrow in Fig. 1 which tends to force the spindle 13 and the finger wheelconnected thereto, to the right in said figure, whereas ressure exerted on the finger wheel to move it in a direction opposite to that indicated by the arrow in Fig. 1, will move the spindle fi against thetension of the spring 24 and force the wedging device, 25 to the left in said figure. The disk like portion 16 has holes at 28 for the reception of screws 29 which unite the platen head to the platen. The shoulder 30 on the laten head is received within the core of the platen and prevents any lateral displacement of the head on the.

platen. The disk like member 15 is recessed or apertured at 31 in opposite side edges.

35 are received attheir threaded ends within thereof and like apertures-32 are provided in the disk like member 16. Actuating levers 33 are seated in the bearing apertures 31 and 32 of the platen head so as to fill the apertures and cause the-levers to rotate with the platen head and platen but to allow a.

ateral vibration of the levers in said bearing apertures. Each" of the levers 33 extends longitudinally of the platen and has at its '10 inner end a portion 34 that bears against the beveled portion 27 of the-wedging device.

A coiled contractile spring 35 is connected at its ends to'the levers .33 and tends to draw the inner ends thereof towards each other and towards the'wedgin device 25. The

outer end 'portion'of each ever 33 is notchedat 36 for cooperation-with the disk-like member 16 of the platen head. The outer face of the disk-like member 16 constitutes. a

fulcrum against, which the end 37 of each lever 33 is adapted to bear and on which the lever turns as a pivotal center when actuated y the Wedging device 25. The outer edge or-tion 38 on the end of each lever bears against the inner face of a line spacing ratchet wheel 39 which is formed with a central opening and collar 40 by which the line spacing wheel is seated on a shouldered por-.

- tion 41' on the laten head and on which the 30 line'spacing' w eel is ada ted to turn.

I A pla'teor platen hea 42 is secured in place, after the parts thus far described have con assembled, by headed screws 43 that extend through openings in said plate and openings in the portion 41 of the )laten head or frame, thus securely uniting t 1e plate-42 spring 35, therebyreleasing the pressure exerted by the levers on the line spacingwheel and the release of pressure thus effected enables the platen to be rotated by either of and the plate 42, so as to lock the line spacing wheel to the platen. From the foregoing description it will be seen that I have provided a simple and efficient fractional. line spacing mechanism'in which I am enabled to employ long levers 33 to secure an efficient frictional engagement between theflline spacing ratchet wheel and the laten in order to effectively lock the two in rictional engagement and prevent any accidental relative displacement between the.

line spacing ratchet wheel and platen when the two are engaged andthat I am enabled to readily disconnect. the devices by merely giving the finger wheel 14 a pressure sufficient to-ove'rcome the tension of the spring 24. It will be understood that the axial movement of the, spacing wheel is so slight that it is not appreciable in the operation of the device ,that is tosay, it does not affect therel'ation of "the line spacing wheel to the to the member comprising the parts 15, 16, ,cooperating line spacing mechanism, and de- 17 and 18. Interposed between the plate 42 .40 and the outer'face of the line spacing wheel is a fiber washer or plate 44 so that the two I metallic faces will not come into direct contact and I, an efficient frictional engagement may be maintained between the plate 42 and 45 the line spacin ratchet wheel when an axial movement of the latter to the left in Fig. 1 is effected by the levers 33. A plate 45 is secured to the member16 by headed screws 46 and this plate is perforated to receive the 50 ends of the levers therethrough as indicated inFigs. -1 and 2. T he'walls47 of the plate opposite the openings therein prevent the levers from dropping away from a position where they properly cooperate with the fulcrum face of the member 16' and with the line spacing ratchet wheel. A spring detent roller-48 coo aerat'es with the teeth of the line spacing ratchet wheel in the usual manner.

It will be understood from the foregoing description,- that pressure exerted upon the finger wheel 14 to effect a lon itudinal movement of-the spindle 6 towards t 1e left in Fig. 1, Will move the wedging device 25 to the left, thus enabling the inner ends of the levers 33 to be drawn closer together bythe tent roller.

It is apparent that' instead of two inde-- pendent spindles 6 and 13, a single spindle may be employed and that other changes may be made without departing from my invention.

What I clalm as new and des re to secure" by Letters Patent, is

1." In a typewriting machine, the combination of a platen, a platen head fixed to one end of the platen, a line spacing wheel that is adapted to turn with the platen or to afford aturning of the platen relatively thereto, levers for pressing the line spacing wheel axially of the platen into contact with the platen head, and means operating .on said evers to release their pressure.

2. In a typewriting machine, the combination of a platen, a platen head fixed to one end of. theplaten, a line spacing wheel that is adapted to turn with the platen or toafford a turning ofthe platen relatively thereto, and hand actuated means fixed against rotation'independently of-the platen but movable longitudinally thereof for effecting a movement of the i ne spacing wheel axially of the platen and into and out of frictional locking engagement with the wheel that is a apted to turn with the platen or to afiord a turning of the platen relatively thereto and independently of the line spacing means, and levers contaiiied within the platen and extending longitudinally thereof and which cooperate with the line spa'cing ratchet wheel, to effect amovem-ent thereof axially of the platen to force the line spacing wheel into and out of engagement with the platen head. I 1 v 4. In a typewriting machine, the combination of a platen, a platen head fixed to one end of the platen, a line spacingwheel that is adapted to turn with the platen or to afford a turning of the platen relatively thereto, levers contained within the platen and extending longitudinally thereof and which cooperate with the line spacing wheel to effect a movement thereof axially of'the platen, to force the line s acing wheel into and out of engagement witli the platen head,

' and a hand controlled wedging device that line spacing w eel that is a apted to turn cooperates with said levers to actuate them.

5 Ina typewriting machine, the combination of a platen, a fixed platen head, a line spacing wheel that is adapted to turn with t v e laten or to afford a turning of the platen re atively thereto, levers contained within the. platen and extending longitudinally thereof and which cooperate with the line spacing wheel to effect a movement thereof axially of the platen, to force the line spacing wheel into and out of en- 'agement with the platen head, awedging evice that moves longitudinally of the.

platen andcooperates with'said levers to actuate them,'a finger wheel, and means for actuating said wedgin'g device b a move: ment "of the finger wheel axia ly of the platen.

6. In 'a typewriting machine, the com-- bination of a laten, a fixed laten head,'a

with the laten or to afford a turning of'the laten re atively thereto, and a plurality of evers that extend longitudinally of, the platen and are connected to rotatetherewith "and are fulcrurnedagainst apart secured to the platenand-bear against theline spacing wheeland effect an axial move- .ment of the line spacing'wheel to force it ,into engagement with the fixed platenihead and thus connect the line spacing wheel and the platen to rotate together.

7. In a typewriting machine, the combination of a platen, a fixed laten head, a

line s acing wheel that is a apted to turn I with t e platen or to afford a turning of the platen relatively thereto a plurality of levers that extend longitudinally of the platen and are connected to rotate therewith and are fulcrumed against a part secured to the platen and bear against the line spacing wheel and effect an axial movement of the' line spacing wheel to force it into engagement with the fixed platen head and thus connect the line spacing ratchetwheel-and the platen to rotate together, and a hand controlled wedging device cooperating with said levers to actuate them. I

8; In a tylpewriting machine, the combi-' nation of a p aten, a fixed platen head, a line spacing wheel that is adapted to turn with t 1 e platen or to afford a turning of the platen relatively thereto, a plurality of levers that extend longitudinally of the laten and are connected to rotate therewit and are fulcrumed against a part secured to the-platen and bear against effect an axial movement of the line spacing Wheel to force it into engagement with the fixed platen head and thus connect the line spacing ratchet wheel and the platen to rotate together, a finger wheel that is adapted to receive a movement axially of the platen, and a wedgi'ng device operatively connected to said finger Wheel and cooperating with said 1e line spacin wheel and levers to actuate them when the finger wheel receives an. axial movement.

9. In a typewriting machine, the combination of a laten, a vfixed platen head, a line spacing w eel that is adapted to turnwith t e platen or to afford a turning of the platen relatively theretofa finger wheel at the end of the platen o posite the line spacing wheel, a longitudina y movable spindle that is fixed to rotate with the platen, longitudinally extending levers that cooperate with said line spaclng Wheel to effect an axial move' ment thereof and to force said wheel into en.

gagement with the. fixed platen head, andan actuating device connected to said spindle.

1 0. In a typewritingmacliine, the combina: tion of a laten, a. fixed platen head, a line spacing W eel that is adapted to t'urnwith t e platen or to afford a turning of'the platen relatively thereto, a finger Wheel at the end of the platen o posite the line spacing wheel, a longitudinaffy movable spring restored spindle that isfixed to rotate with the platen, longitudinally extending levers that coop'- eratewith said line spacing wheel to effect an nection between the line spacing Wheel and thefixed plate.

12. In a typewriting machine, the combina- 7 tion of a platen, an abutment thereon, a line spacing ratchet Wheel adjacent said abutment, spring pressed levers acting normally to press said line space ratchet Wheel against said abutment and thus causing the ratchet Wheel and platen to rotate together during regular line spacingmovements, and means adapted to cause said levers to release their pressure upon said ratchet Wheel so as to enable the platen to be turned independently of said ratchet Wheel.

13. In a typewriting machine, the combination of a platen, an abutment thereon, a line spacing ratchet Wheel adjacent said abutment, sprlng pressed levers acting normally to press said line s ace ratchet Wheel against said abutment an thus causing the ratchet Wheel and platen to rotate together during regular line spacing movements, releasing means cooperative with said levers to release their pressure upon said ratchet Wheel so as to enable the platen to be turned independently of said ratchet Wheel, and a s indie or rod movable longitudinally Within t e platen and cooperative with said releasing means.

Signed at Syracuse, in the county of Onondaga and State of New York this 5th day of July A. D. 1905.

CHARLES J. BOND.

Witnesses i I JOHN S. MITCHELL, W. J. LOGAN. 

